JPH0420197A - Environmental control system - Google Patents

Abstract

PURPOSE:To attain correspondence with the control unit of one kind irrespective of the device conditions and the kind of an environmental controller by making a control signal outputted when the outputs of plural sensors to detect enviroments different mutually satisfy setting conditions. CONSTITUTION:A control unit 2 is provided with a connecting part 3 to which plural sensors 11 to 14 to detect environments different mutually are able to be connected, a conditions discriminating part 4 to output a control signal when the outputs of the respective sensors 11 to 14 satisfy setting conditions and a conditions setting part 5 to set discriminating conditions in the conditions discriminating part 4 and the action state of a load to the discriminating conditions. Then, the output of the conditions discriminating part 4 is the control signal to indicate the action state of the load and the control signal is inputted to terminal equipment for monitoring 12. Thus, correspondence is attained with the control unit of one kind irrespective of the setting conditions and the kind of an environmental controller by selecting the kind of the sensors 11 to 14 to detect environmental conditions necessary for the actutating of the load and executing word becomes easy.

Description

[Detailed description of the invention] [Industrial application field]

The present invention transmits data between a central control unit and a plurality of terminals connected via a signal line, and transmits data according to environmental conditions detected by an environment detection device connected to a monitoring terminal. This is an environmental control system that controls an environmental control device connected to a control terminal.

[Conventional technology]

BACKGROUND ART Conventionally, environment control devices such as daylight window opening/closing devices and ventilation fans that open and close daylight windows using a power source have been provided. Currently, the operating state of this type of environmental control device is controlled by a switch individually provided corresponding to each environmental control device.

[Problem to be solved by the invention]

On the other hand, it is desirable that windows etc. open automatically when a gas leak occurs, and it is desirable that windows etc. automatically close when it rains. In order to meet such requirements, it is necessary to arrange sensors according to the required environmental conditions in each environmental control device. Generally, since the operation of an environmental control device requires judgment based on multiple types of environmental conditions, multiple types of sensors correspond to one environmental control device. However, since the required sensors usually differ depending on the installation location and type of environmental control device, the judgment conditions will naturally also differ, and each environmental control device requires processing of multiple types of sensors and condition judgment. It is necessary to design a circuit for performing this, which poses a problem in that the construction work becomes extremely troublesome. The present invention aims to solve the above-mentioned problems, and makes it possible to automatically operate an environment control device based on the output of a sensor that detects the surrounding environment of the environment control device. The present invention aims to provide an environmental control system that can be easily installed using one type of control unit regardless of the installation conditions or type of equipment.

[Means to solve the problem]

In order to achieve the above object, in the present invention, a plurality of terminal devices for monitoring and control, each having an address set therein, are connected to a central control device via a signal line consisting of two wires, and a terminal for control An environmental control device such as a lighting window opening/closing device or a ventilation fan is connected to the device as a load, and the monitoring device is connected to a monitoring terminal device and detects the surrounding environment of the load according to the output from the environmental control device. An environment in which transmission signals are time-division multiplexed between a central control unit and each terminal device so that the operation of a load connected to a control terminal device for which address correspondence to the terminal device is set is controlled. The control system includes an environment detection device that includes a sensor that detects the surrounding environment of the load, and a control unit that determines the operating state of the load based on the environmental conditions detected by the sensor and outputs a control signal, The control unit includes a connection section to which multiple sensors that detect different environments can be connected, a condition determination section that outputs a control signal when the output of each sensor satisfies a set condition, and a determination condition in the condition determination section. and a condition setting unit that sets the operating state of the load in accordance with the determination condition.

[Effect]

According to the above configuration, the environment detection device includes a sensor that detects the surrounding environment of the load, and a control unit that determines the operating state of the load based on the environmental conditions detected by the sensor and outputs a control signal. The unit includes a connection section to which multiple sensors that detect different environments can be connected, a condition determination section that outputs a control signal when the output of each sensor satisfies a set condition, and a determination condition and condition in the condition determination section. It is equipped with a condition setting section that sets the operating state of the load based on the judgment conditions, so if you select the type of sensor that detects the environmental conditions necessary for the operation of the load that is the environmental control device, you can install the environmental control device. One type of control unit can be used regardless of the conditions or type, making construction work easier. In addition, the environment detection device is connected to a monitoring terminal device, the environment control device is connected to a control terminal device, and time division multiplex transmission is performed between the environment detection device and the central control device via two signal lines. Since signal transmission is performed, only two wires can be installed, making the installation work even easier.

【Example】

The overall configuration of the system is as shown in FIG. It is connected via the signal line 1s, and the monitoring terminal 12 has switches SI to S such as a wall switch.
4 and an environment detection device ED are connected as monitoring inputs, and a terminal 13 for control is loaded and ~L4 is connected. Here, the loads L1 to L1 include a lighting window opening and closing device that opens and closes the lighting window, a shutter opening and closing device that opens and closes the shutter, a blind opening and closing device that opens and closes the blinds, a ventilation fan, and a lighting load that can change the environmental conditions. The target is environmental control equipment. Signal line Lll from central control unit 11
As shown in FIG. 2(a), the transmission signal vIl sent to each terminal device 12.
13, a control data signal CD that transmits control data for controlling the loads L1 to L4, and a checksum data signal C.
This is a bipolar (±24V) time-division multiplexed signal consisting of a return signal period WT that sets the return period of 8 and each terminal 12, 13, etc., and data is transmitted by pulse width modulation. In each terminal device 12.13, the signal line i
When the address data of the transmission signal Vs received via s matches the set address data, the control data of the transmission signal VS is taken in, and the transmission signal Vs
The monitoring data signal is returned as a current mode signal (a signal sent by short-circuiting the signal line is via an appropriate low impedance) in synchronization with the return signal period rWJWT. The central control device 11 also includes a dummy signal transmitting means for constantly transmitting a dummy transmission signal obtained by combining the mode data signal MD with a dummy mode, and a terminal device 12 for monitoring.
When an interrupt signal Vi as shown in FIG. 2(b) is received as shown in FIG. Interrupt processing means for returning the data is provided. In the central control device 11, based on the monitoring data sent back to the central control device 11 from the monitoring terminal device 12 as described above, the corresponding load ~L4 is transmitted to the control terminal device 13 that controls the load. Control data is created, and the control data is time-division multiplexed transmitted to the control terminal 13 via the signal line Is and loaded to control the terminals 1 to L. Here, the correspondence relationship between the addresses of each terminal device 12, 13 is managed by the central control device 11, and the monitoring terminal device 12 and the control terminal device 13, to which correspondence partners are set, have addresses that are different from each other. Channels are assigned so that separately set channel numbers are the same. Also, multiple load numbers are set for the same channel, and even if the channel is the same, multiple loads Ll~
L4 can be controlled. Monitoring terminal 1
2 and the control terminal 13 are obtained by rectifying and smoothing the transmission signal Vs transmitted through the signal line IS. As shown in FIG. 3, the environment detection device ED detects loads L1 to
Sensor 1 for detecting the surrounding environment of L4. ~1° and sensor 1. A control unit 2 determines the operating state of the load (on/off, open/close, etc.) based on the environmental conditions detected in steps 14 to 14 and outputs a control signal.Sensor 1
1-1. A rain sensor 10 detects the presence or absence of rain.
, a humidity sensor 12 that detects ambient humidity, a temperature sensor 11 that detects ambient temperature, - a gas sensor 11 that detects the concentration of carbon oxide or other specific gas (city gas or propane gas), an illuminance sensor that detects ambient illuminance, A wind sensor detects the strength of the wind, a fire sensor detects the presence or absence of a fire, and a smoke sensor detects the concentration of smoke, which are selected as needed. The output of each sensor 1□ to 14 is taken out as a binary output by providing a threshold value or the like. The control unit 2 includes a plurality of sensors 11 to 1. which detect mutually different environments. a connection part 3 to which each sensor 1. A condition determining section 4 that outputs a control signal when the outputs of 14 to 14 satisfy a set condition, and a condition setting section 5 that sets the operational state of the determination conditions in the condition determining section 4 and the loads L1 to L with respect to the determination conditions. It is equipped with Here,
The connection unit 3 is configured so that up to four sensors 11 to 14 can be connected, but the 0 condition determination unit 4 is not limited to this.
Which of the outputs should be enabled? What should the priority be?
The zero condition setting unit 5 that sets whether to turn off (open or close) the sensors 1. ~
The output of 14 selects whether the corresponding load, ~L, is on (open) or off (closed).
OFF selection section 5b. For example, when the loads L1 to L are daylight windows, rain sensor 1. Temperature sensor 1. closes when rain is detected. It is necessary to open the door when the temperature detected by the rain sensor
I is the first order, temperature sensor 1. is given the second priority, and since the humidity sensor 12 and gas sensor 1° are irrelevant to the determination in this case, the outputs of both sensors Iz, 1- are invalidated. Also, if the load is applied and ~L is a ventilation fan, only the output of one temperature sensor is enabled and the other sensor 1 is
The 0 condition determining section 4 and the condition setting section 5, which invalidate the output of 1.12.14, make such a selection. The output of the condition determination unit 4 is a control signal that instructs the operating state of the load, ~L, and the control signal is sent to the monitoring terminal 1.
2 is input. The monitoring terminal device 12 has a control device connected to a load having the same channel as the channel set by the channel setting section 7a and having the same load number as the load number set by the load number setting section 7b. The content of the control signal is transmitted to the terminal device 13 for control, and
3, the load connected to L4 is controlled. By the way, a plurality of the condition determination section 4, condition setting section 5, and monitoring terminal 12 are housed in one control box 6, and the front of the control box 6 has a A sensor selection section 5a, an on/off selection section 5b, a channel setting section 7a, and a load number setting section 7b are provided with operation sections. For example, the sensor selection section 5a is an operation section for specifying whether the upper row is valid and the lower row is invalid. ~1. Four rows are provided horizontally to correspond to the The priority order is set in advance by specifying the connection position in the connection unit 3, or by specifying it by the order of operations on the operation unit. On/off selection section 5
If such a control box 6 is used, the upper stage is on (open) and the lower stage is off (closed), etc., the four sensors 1. ~1. By simply connecting the two, it is possible to individually control a plurality of loads L1 to L4 that need to be operated under mutually different conditions. For example, when controlling the above-mentioned daylight window and ventilation fan, both use the output of one temperature sensor, but the daylight window uses the output of one rain sensor.
It is necessary to specify the priority with the output of the ventilation fan, and the temperature sensor 1. It is controlled only by the output of the rain sensor 11 and two temperature sensors 1. However, in the case of this configuration, temperature sensor 1. can be shared.

【Effect of the invention】

As described above, the present invention provides an environment detection device that includes a sensor that detects the surrounding environment of a load, and a control unit that determines the operating state of the load based on the environmental conditions detected by the sensor and outputs a control signal. , a connection part to which the control unit can connect a plurality of sensors that detect mutually different environments;
Since it is equipped with a condition determination section that outputs a control signal when the output of each sensor satisfies a set condition, and a condition setting section that sets the determination condition in the condition determination section and the operating state of the load with respect to the determination condition, By selecting the type of sensor that detects the environmental conditions necessary for the operation of the load that is the environmental control device, one type of control unit can be used regardless of the installation conditions or type of the environmental control device, making installation work easier. It becomes. In addition, the environment detection device is connected to a monitoring terminal device, the environment control device is connected to a control terminal device, and time division multiplex transmission is performed between the environment detection device and the central control device via two signal lines. Since signal transmission is performed, only two wires can be installed, which has the advantage of making the installation work easier.

[Brief explanation of drawings]

Fig. 1 is a schematic configuration diagram showing an embodiment of the present invention, Fig. 2 is an explanatory diagram of the operation of the same transmission system, Fig. 3 is a block diagram showing an environment detection device used in the same, and Fig. 4 is a block diagram showing the environment detection device used in the same. FIG. 3 is a perspective view of the control box. 11-1. ...Sensor, 2...Control unit, 3.
...Connecting section, 4...Condition determining section, 5...Condition setting section, 11...Central control unit, i2...Terminal for monitoring, 13 Terminal for river control, ED...・Environment detection device, L
1~L...Load, 1s...Signal line.

Claims (1)

[Claims] (1) Multiple terminals for monitoring and control, each with a set address, are connected to the central control unit via a two-wire signal line, and the control terminals include lighting window opening/closing devices and ventilation fans. etc. is connected as a load, and the correspondence of addresses to the monitoring terminal is set according to the output from the environment detection device that is connected to the monitoring terminal and detects the surrounding environment of the load. An environmental control system that time-division multiplex transmits transmission signals between a central control device and each terminal device so that the operation of a load connected to a terminal device for control is controlled by an environment detection device. is equipped with a sensor that detects the surrounding environment of the load, and a control unit that determines the operating state of the load based on the environmental conditions detected by the sensor and outputs a control signal, and the control unit detects different environments. a connection section to which multiple sensors can be connected, a condition determination section that outputs a control signal when the output of each sensor satisfies a set condition, and a determination condition in the condition determination section and the operating state of the load in response to the determination condition. An environmental control system comprising: a condition setting section for setting the conditions.